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| author |   Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
|---|---|---|
| committer | Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
| commit | e02cda008591317b1625707ff8e115a4841aa889 (patch) | |
| tree | aee302e3cf8b59ec2d32ec481be3d1afddfc8968 /tests/qemu-iotests/038 | |
| parent | cc668e6b7e0ffd8c9d130513d12053cf5eda1d3b (diff) | |
Introduce Virtio-loopback epsilon release:
Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.
Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9
Diffstat (limited to 'tests/qemu-iotests/038')
| -rwxr-xr-x | tests/qemu-iotests/038 | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/tests/qemu-iotests/038 b/tests/qemu-iotests/038 new file mode 100755 index 000000000..65bf7a753 --- /dev/null +++ b/tests/qemu-iotests/038 @@ -0,0 +1,136 @@ +#!/usr/bin/env bash +# group: rw auto backing quick +# +# Test COW from backing files with AIO +# +# Copyright (C) 2012 Red Hat, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +# creator +owner=kwolf@redhat.com + +seq=`basename $0` +echo "QA output created by $seq" + +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_test_img +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter + +_supported_fmt qcow2 qed +_supported_proto file fuse +_supported_os Linux + +CLUSTER_SIZE=2M +size=128M + +echo +echo "== creating backing file for COW tests ==" + +TEST_IMG_SAVE="$TEST_IMG" +TEST_IMG="$TEST_IMG.base" + +_make_test_img $size + +backing_io() +{ + local offset=$1 + local sectors=$2 + local op=$3 + local pattern=0 + local cur_sec=0 + + for i in $(seq 0 $((sectors - 1))); do + cur_sec=$((offset / 65536 + i)) + pattern=$(( ( (cur_sec % 128) + (cur_sec / 128)) % 128 )) + + echo "$op -P $pattern $((cur_sec * 64))k 64k" + done +} + +backing_io 0 256 write | $QEMU_IO "$TEST_IMG" | _filter_qemu_io + +TEST_IMG="$TEST_IMG_SAVE" + +_make_test_img -b "$TEST_IMG.base" -F $IMGFMT 6G + +echo +echo "== Some concurrent requests touching the same cluster ==" + +overlay_io() +{ + # Start with a request touching two clusters + echo aio_write -P 0x80 2020k 80k + + # Then add some requests all over the place + for i in $(seq 0 15; seq 17 31; seq 33 47); do + echo aio_write -P $((0x81 + i)) $((i * 128))k 64k + done + + # Then backwards overwriting part of them + for i in $( (seq 0 15; seq 17 31; seq 33 47) | tac); do + echo aio_write -P $((0x81 + i)) $((i * 128 + 32))k 64k + done + + # And finally crossing the next cluster boundary + echo aio_write -P 0x90 4080k 80k +} + +overlay_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io |\ + sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g' \ + -e 's/qemu-io> //g' | paste - - | sort | tr '\t' '\n' + +echo +echo "== Verify image content ==" + +verify_io() +{ + echo read -P 31 2016k 4k + echo read -P 0x80 2020k 80k + echo read -P 32 2100k 12k + echo read -P 33 2112k 64k + + echo read -P 63 4064k 16k + echo read -P 0x90 4080k 80k + echo read -P 65 4160k 64k + + for i in $(seq 0 15; seq 17 31; seq 33 47); do + echo read -P $((0x81 + i)) $((i * 128))k 96k + done + + for i in $(seq 0 14; seq 16 30; seq 32 47); do + local cur_sec=$(( i * 2 + 1 )) + local pattern=$(( ( (cur_sec % 128) + (cur_sec / 128)) % 128 )) + + echo read -P $pattern $((i * 128 + 96))k 32k + done +} + +verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io + +_check_test_img + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 |